Improved communications and ease of travel.
If you're talking about a solid rocket booster, or SRB, then it's the solid-fuel powered rocket motors attached outside the main vehicle, used to provide extra lift at take-off, and jettisoned after take-off when their fuel has expired. These are used on the sides of the Space Shuttle (they're the big, pointy things on the sides). That's the only thing I know of that fits your description, and I'm sorry if that's not what you mean.
The two main types of rocket engines are Solid fuel rocket engines and Liquid fuel rocket engines.
You use fins and a nose cone on a bottle rocket because the cone reduces the drag on the rocket, and the fins help stabilize the rocket.
It depends on the type of rocket.
In the year 1829
It was a railway locomotive.
29 mph
Robert Stephensons is George Stephensons father
it was the first to bring together several innovations to produce the most advance locomotive of its day.
Stephensons of Essex was created in 1975.
big rocket
The Big Day - Rocket Power - was created in 2004.
Orange
There are many thousands of Stephensons that live in England
100ft
30000000m